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[Bug tree-optimization/18687] [4.0/4.1/4.2/4.3 Regression] ~50% compile time regression
- From: "hubicka at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Oct 2007 18:57:31 -0000
- Subject: [Bug tree-optimization/18687] [4.0/4.1/4.2/4.3 Regression] ~50% compile time regression
- References: <bug-18687-7958@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #36 from hubicka at gcc dot gnu dot org 2007-10-09 18:57 -------
Startup times was optimized a bit in 4.3.
hashes.c, 100 compilations:
GCC-3.3 GCC-3.4 mainline mainline&profiledbootstrap
-O0 3.2s 3.8s 3.6s 3.3s
-O1 5s 5.6s 8.1s 7.4s
-O2 7.7s 7.6s 12.4s 11.1s
So at least for -O0 we are back to original speed.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18687